Spring Web Services

Exercise: Todo REST Service

The objective of this exercise is to implement a RESTful Todo Web Service using Spring Web MVC.

Assignment

1. Preparation
   • Remove the client artifacts from the todo application
   • Add the spring-boot-starter-web dependency to the Maven project
2. Service implementation
   
   • Make the TodoListImpl class a REST controller by annotating it with Spring Web MVC annotations
   • Replace the multiple parameters of the addTodo method by a single todo object
   • Add an ID path variable to the updateTodo method and verify its consistency
   • Implement an exception handler for the TodoNotFoundException such that the error status 404 and an appropriate problem detail is returned when the exception is thrown
3. Configuration
   
   • Set the spring.mvc.problemdetails.enabled application property to enable support for problem details (RFC 7807)
   • Define the server.servlet.contextPath application property to customize the URL pattern of the DispatcherServlet (e.g. /rest)
4. Testing
   
   • Use the Postman utility to send REST requests the web service

Solution